Commit graph

23 commits

Author SHA1 Message Date
ffd791d05b refactor(porch): name the web framework porch, fix the wo.toml identifier claim
- docs/examples/writeonce-serve -> docs/examples/porch (git mv, history kept);
  `[deps]` key and import are now `porch` / `porch/http` / `porch/router`
- name history preserved on the library README, not rewritten into dated
  records: writeonce-framework -> writeonce-serve (08-25) -> porch (08-26).
  Stories, specs, plans and the audit reports keep the older name by the
  repo's own convention; only live docs and every path link were rewritten
- left alone deliberately: `internal/serve.wo`, `pub fn serve`, `serve_conn`,
  `app.serve(...)` — those are functions, not the module name
- web-app/wo.toml comment corrected: it claimed hyphens are not identifier
  characters and named a key this file never used. lexer.ml's `is_ident_cont`
  DOES accept `-` (an internal dash is part of the identifier, which is why
  binary minus needs spaces), so a hyphenated key would be legal too
- site now teaches the name: package card, the two-deps chapter and the
  handlers-are-classes chapter say `porch`; site-accept asserted the old
  /packages/serve route and caught the rename, as a gate should
- gates: web-app 46/0, site 21/0, deps-accept 8/0, oop-e2e 116/0,
  linkcheck 0 broken / 0 anchors; porch typechecks entry-less as kind=library

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-26 19:36:34 +02:00
ef37b8ffa2 feat(serve+view): file serving, downloads, supported systems; rename
- rename the two libraries: writeonce-framework -> writeonce-serve
  (`use serve`), wo-html -> writeonce-view (`use view`). Names say the
  ROLE now; every sample, script, gate and live doc follows
- stories/specs/plans keep the old names: they are dated records, and
  both library READMEs carry a "renamed 2026-08-25" note
- serve/http/files.wo: StaticFiles { dir, max_bytes } — traversal
  refused not normalised, extension content types, attachment
  disposition for archives. Lifted out of the shop, which had said in
  a comment that it belonged in the framework
- shop drops its private copy and mounts the framework's
- site: /dl/*path over $WO_DIST (default ./dist), 16 MiB ceiling
- /install gains supported systems — Linux x86-64, glibc >= 2.38,
  not musl — read off `file` and the binaries' GLIBC_ symbol
  versions, not off a wish list; plus GitHub release as primary,
  /dl as mirror, and the sha256 verify step
- site-accept: 17 -> 21 checks (supported systems, gzip download with
  a binary-safe probe, checksum, /dl traversal 404)

Verified on 192.168.0.165: the real 960,820-byte tarball downloads
as application/gzip and its sha256 matches the published digest.

Gates: oop-accept MET, site 21/0, web-app 46/0, fibers 10/0,
db-actor 8/0; shop rebuilt and its /assets served by the framework.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-25 04:41:00 +02:00
ad4b380cf1 feat: writeonce.de tutorial site + wo-html library (two-dep full stack)
- docs/examples/wo-html: library dep — esc(), element builders,
  Tailwind-style utility sheet as one static string, page() shell;
  self-contained responses, no CDN/JS/build step
- docs/examples/site: the language tutorial served by the language —
  9 seeded chapters in a @table (hello/values+bitwise/containers/
  classes/optionals+traps/tables/actors/deps/serving), server-rendered
  via wo-html, seed-if-empty so WAL restarts keep admin edits
- routes: / index, /ch/:slug (styled 404), /health, POST /admin/ch/
  :slug (bearer handler-side — mechanism framework's, policy app's;
  form-encoded title/body update by assignment, 302 back)
- chapter code samples use the lexer's \$ escape to show ${...}
  literally; .. never straddles newlines (accumulator style)
- gate: scripts/site-accept.sh + just site — TWO file:// dep remotes,
  11 checks incl. authed-edit-survives-restart; /health polling, no
  boot-race sleep
- README: run + nginx sketch for writeonce.de; CODE-LOGIC beside code
- full battery 13/13 (site gate included)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-23 01:51:14 +02:00
d1cdf3ed6c feat(db-bench): campaign driver + gate + recipes (T4)
- scripts/db-bench.py (one python driver — bash+python deviation,
  disclosed): ram+durable x 1/N shards, msgrate per shard count,
  restart proof, kill -9 battery vs acked high-water, RSS/fd
  sampling from the mix phase, results JSON, relative+floor gates
- just db-bench / db-bench-quick (quick = floors only)
- quick campaign 14 checks green; gate honestly fails without a
  baseline (--write-baseline is Task 5's first full run)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-21 16:44:25 +02:00
07c1f7b257 feat: arc stage 3 T7 — transparent DB actor (WO_T_DB hole closed)
- worker DB builtins marshal to shard 0: requester-side slot encode
  (VM heaps never read cross-shard), owner executes serialized in
  adopt, reply unparks via new WO_PARK_INBOX park + envelope 3/4
- engine gains thread-agnostic slot entry points (insert_slots,
  update_field_slot, val_encode/clone, wo_db_exec_req); traps and
  messages byte-identical to the local path
- main.c: engine + replay boot BEFORE shards spawn; workers assert
  rt.db/rt.wal NULL; busy shard adopts inbox once per slice
- latent stage-1 bug fixed: shared io_uring params static raced by
  lazy worker init lost park wakes (~1/20 hangs); params per-vm,
  short submit now fails loud
- new sample docs/examples/db-actor + just db-actor gate 8/0 (multi
  x3, uring/epoll forced, single byte-exact, WAL replay pair);
  ASan+TSan 6/6; full battery green

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-21 13:10:26 +02:00
d24c705860 feat: iterations 19 + 17 — Float/Bytes scalars (.wob v5), library kind + internal/
- Float full stack: literals (fraction/exponent; `0..10` still a range), f64
  opcodes 34-41, @table column, WAL bit-exact replay, json fractions in and
  shortest-round-trip out. IEEE-quiet — FDIV never traps where DIV does.
- Bytes: a wo_str with its own class id, so alloc/free/copy are shared but no
  Text builtin accepts one; len/at/slice/eq/concat, base64 both ways, json
  boundary as base64; TEXT_COPY preserves the kind.
- No implicit Int/Float mixing (WO-E201 in the typechecker, not the emitter,
  which picks the opcode from one side and would misread the other).
- One IEEE deviation: float_cmp total order (NaN last, -0.0 == +0.0) for
  indexes and order-by, keys canonicalized to match. `?Float` nil is a
  reserved quiet NaN — the zero word is +0.0, WO_NIL_SCALAR's bits are -2.0.
- Renderer prefers fixed over exponential in 1e-6..1e21: pure shortest makes
  a price of 900.0 read `9e+02`. One renderer for interp/json/float_to_text.
- Fixed en route: lexer double-counted the leading digit; is_scalar_shaped
  took Float/Bytes as Int-shaped; Bytes ownership needed a shared heap-scalar
  predicate or temps never dropped; order-by bit-compared negatives backwards.
- Iteration 17: `kind = "library"` (absent = program; bad value = WO-E109),
  entry-less check mode retiring the `--emit` workaround, Go's `internal/` as
  WO-E108 at the consumer's `use`. Driver-only; VM/.wob/GC untouched.
- Framework reorg: internal/{parse,serve}.wo; http/form.wo split out to keep
  media_type/form_values public (parse.wo had grown public surface).
- Docs: link audit (97 -> 88 broken, conflict markers resolved, 2 duplicate
  stories removed), 00-code-review verified 26/27, iterations re-sequenced.
- Also carries the pre-staged pub(read)/using/#if work from the index.
- Gates: corpus 103/0, test_wal 156/0, web-app 26/0, oop-accept ALL MET.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-20 19:24:15 +02:00
7a614420f4 feat(examples): fibers — the hybrid scheduler demonstrated + gate
- docs/examples/fibers: part 1 is TIMING-FREE and byte-exact — main
  sends three messages then burns reductions; each budget expiry hands
  the Counter actor exactly one delivery (cooperative mechanics,
  preemptive fairness, BEAM's shape); part 2 parks a Sleeper actor
  mid-receive on the I/O plane while main keeps ticking — the wake
  lands between ticks, proving a sleeping fiber blocks nobody
- the missing "sleeper: up" on the first run was main-return-reap
  working as specced (main ended before the deadline); the demo's
  window widened so the wake is observable
- scripts/fibers-accept.sh + `just fibers` (8 checks): build, part-1
  exact + part-2 ordering invariants on auto/uring/epoll backends,
  and an ASan-runtime rebuild+run
- README points at the doctrine writeup (exploration/fibers)

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-20 10:00:40 +02:00
c72b3354ff test: web-app-accept — iteration 16's gate (Task 5)
scripts/web-app-accept.sh: 14 checks, network-free — temp git remote from
the framework dir, file:// substituted into a temp app copy, then fetch +
wo.lock + build; 401-without-token; empty list; 201 create; 409 duplicate
(@unique); 400 malformed json; list/show payloads; 404; 201 order (FK); 409
delete-while-referenced with the server surviving; pipelined keep-alive (2
responses, 1 connection); SIGTERM; WAL restart persistence. Wired as
`just web-app`. 14/0.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-19 19:57:30 +02:00
77d387fc0a test: deps-accept — iteration 15's gate (Task 4)
scripts/deps-accept.sh: 8 checks over local file:// remotes built at run
time (network-free) — cold fetch + lock + use <dep>/<dep>/sub + app-entry-
wins (the dep's fn main returns 99 and must never run), offline rebuild
with the remote deleted, lock-beats-moved-tag, --update-deps refresh,
cache/lock drift WO-E106, transitive refusal, WO-E107 collision, missing-rev
manifest shape. `just deps-accept` wired. 8/0.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-19 19:21:32 +02:00
41422d316b chore: remove the old Rust runtime track from master
Master now reflects only the current woc/wovm project. The Rust `wo` runtime
was the prior, abandoned architecture; it is fully independent of the woc/wovm
stack (dune + make, no Cargo dependency), so it lifts out cleanly. Recoverable
via git history.

Removed:
- crates/ (29 files) + Cargo.toml + Cargo.lock — the Rust runtime workspace
- prototypes/ — wo-rt-c (a stale duplicate of runtime/) + wo-db C++ ref
- justfile: the rt-c-demo / rt-c-bench recipes (drove prototypes/wo-rt-c)
- docs/plan/05..16 (11 Rust engineering plans) + docs/plan/done/ (4 Rust
  Stage-2 done plans)
- docs/runtime/ (11): the old runtime overview + 7-phase DB design series +
  async/fibers/gc/surreal concept essays
- docs/cm.md — legacy scratch note

Kept: compiler/, runtime/ (C VM), database/, the current-track docs
(stories, superpowers, plan/{oop-vm,compiler,exploration}, examples), the
discarded/learnings registers, and the syscall/postgres/assembly/c-runtime
studies. Follow-up commits fix the status board, project-structure doc, and
any dangling links to the removed docs.

Verified: woc + wovm still build; woc/wovm --version green.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-18 01:50:20 +02:00
f0971e1481 feat: installable toolchain — version, wovm self-locate, dist tarball
Close the 3 gaps between "builds in the repo" and "installs from a tarball
like Go", so writeonce can ship to other developers.

- VERSION file at repo root single-sources the toolchain version (0.1.0).
- `woc version` -> "writeonce 0.1.0 linux/amd64"; `wovm --version` -> "wovm
  0.1.0" (stamped by the Makefile from VERSION; --version handled only in the
  plain-wovm path so a built app never shadows its own `version` arg).
- wo.toml `[runtime] wo = ">= X.Y"` is now ENFORCED: woc refuses a project
  requiring a newer toolchain than itself (>= and bare version parsed;
  unknown operators accepted forward-compatibly). Was parsed-and-ignored.
- woc self-locates wovm: --runtime > [build] runtime > $WO_RUNTIME > a `wovm`
  beside the woc binary (Sys.executable_name) > runtime/wovm rel CWD. An
  installed woc in <prefix>/bin finds its sibling wovm from any cwd.
- `just dist` (scripts/mkdist.sh) packages writeonce-<ver>-linux-amd64.tar.gz,
  Go-shaped (archive root writeonce/, bin/{woc,wovm}, README, VERSION), with a
  drift guard asserting VERSION == woc == wovm. dist/ gitignored.
- `just install-accept` (scripts/install-accept.sh) is the gate: extract, PATH,
  version, build+run a project from an unrelated cwd, constraint refusal — 6/0.

Verified: install-accept 6/0; woc-test 565/0; wovm suites + cli_smoke;
log-watcher 7/0. Linux-amd64 only (a cross matrix is future work).

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-18 01:19:20 +02:00
2677c1457e feat: FK restrict on delete + employee sample runs; group-by parked (9b)
- FK restrict: deleting a row a non-nullable `ref` still points at traps
  WO_T_FK (11), catchable. The compiler now records a `ref` field's
  target class in the class-table field_class metadata; the engine
  (wo_row_has_referrers) scans referencing scalar columns before a
  delete. Correctness-first full scan; the backlink-index optimization
  is recorded for later
- docs/examples/employee now COMPILES AND RUNS all six modes against a
  WAL-durable database: seed (+@unique trap across restart), report
  (per-dept aggregates + payroll), staff (unique probe + backlink +
  ref nav), raise (update-through-row), drop (FK restrict), and
  persistence via replay
- group-by SYNTAX parked to a future iteration (user decision): the
  report mode is hand-rolled from the shipped primitives meanwhile
  (same numbers). "table relations and FK" is complete
- scripts/employee-accept.sh (8 checks) + a `just employee` module;
  manifest parser tolerates iteration 9c's [share]/[[share.clients]]
  sections so `woc .` builds the sample on this branch
- fixtures trap/db-fk-restrict (code 11) + run/db-fk-restrict-catch;
  oop-e2e 79/0, woc-test 566/0, 15 runtime suites, log-watcher 7/0,
  employee-accept 8/0
- 9b story + status board updated

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-16 18:37:23 +02:00
30ef8d8533 feat: insert executes (iteration 9, Task 3) -- DB_STUB retires for insert
- compiler: `insert Class { ... }` is a typed Ast.Insert in statement
  AND expression position, sharing the ctor literal's field grammar;
  typechecked with the ctor's omittable rule; result = the row id (Int)
- owner pass: the engine copies at the row API, so an insert BORROWS
  its field values -- no transfer, no E304; node is trap-capable and
  carries a live-mask drop entry like DbStub did
- emit: builtin 61 window = class-id const + one slot per DECLARED
  field in declaration order; omitted defaults emitted, omitted ?scalar
  gets WO_NIL_SCALAR, other omitted optionals the zero word; fresh
  argument values reaped after (the push/set copy semantics)
- runtime: database/src/db.c executes via the choke-point row API;
  rt.db/rt.wal opaque handles on wo_rt; WO_DATA=<dir> = replay
  <dir>/shard-0.wal at boot + commit-before-ack per statement (the
  builtin's return IS the ack until iteration 8 ticks); failed commit
  un-applies the row and traps WO_T_IO; loader validates the class-id
  slot (variable window documented in wob.h + format doc)
- the promised diff: trap/pricing-set-price-db-stub is now
  run/pricing-set-price-insert printing engine-allocated ids;
  durability smoke prints 1,2 then 3,4 across two WO_DATA runs
- old "bare insert is an Ident" unit test rewritten to the new
  contract; runner's loader mirror accepts id 61; goldens re-blessed
- gates: oop-accept ALL CRITERIA MET, oop-e2e 71/0, woc-test 566/0,
  wovm-test green, log-watcher 7/0

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-15 11:15:06 +02:00
5e27b2f685 chore: keep only the log-watcher example (pre-merge cleanup)
- docs/examples/{agent-loop,blog,ecommerce,hello,mcp-think,pricing}
  removed; every deleted tree is preserved on branch
  cleanup/non-logwatcher-examples (snapshot of this branch pre-delete)
- justfile: hello/pricing/pricing-demo/pricing-pg-demo/hello-demo
  recipes removed with the examples they served (Rust-runtime demos);
  rt-c-* prototype recipes and every gate recipe stay
- crates/rt parser test article_debug: the blog fixture it read from
  disk now lives inline, same shape, so cargo test needs no example
- gates after cleanup: cargo test -p rt 69/0, oop-e2e 71/0, woc-test
  green, log-watcher 7/0

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-15 09:06:26 +02:00
c4d2a588ff chore: move the sample's recipes beside it (just module)
- docs/examples/log-watcher/justfile carries build/accept/soak; the
  root mounts it with `mod log-watcher`, so `just log-watcher` still
  runs the acceptance (default recipe) and every doc reference stays
  valid; `just log-watcher::build` / `::soak 60` reach the rest, and
  plain `just build` works from inside the directory
- ROOT is source_directory()-based: inside a `mod`,
  justfile_directory() names the ROOT justfile's directory and every
  path would miss

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-15 01:35:56 +02:00
d994f153dd chore: just recipes for the sample build and the soak
- log-watcher-build: `woc <dir>` manifest build, output at
  docs/examples/log-watcher/target/log-watcher
- log-watcher-soak [DURATION=30]: the acceptance script's opt-in soak
- log-watcher's comment now names the stop check it grew in Task 4

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-15 01:26:06 +02:00
4cf548d6a0 fix: copy-on-push closes the container double-free; line-buffer program output
The unsoundness is closed. All four MCP tools now answer correctly over HTTP
(get_running_crons, list_logs, tail_log -> ["info two","error three"],
search_log -> its match) where `tail_log` used to return
{"isError":true,"text":"tool failed: not a text value"}. corpus 71/0,
woc 565/0, wovm gates green, ASan clean on the container fixtures.

- builtin.c: multi_push, map_set (key AND value) and multi_set COPY a TEXT
  element into the container. The container's declared kinds already make it
  the owner of what it holds, so storing a caller-owned pointer gave one
  string two owners — `push(res, e.log_path)` freed a record's field out from
  under it. OWNED/GCREF elements still move (not copyable; the @gc escape
  keeps their counting), so `set`'s @gc gap is untouched and still recorded
- emit.ml: `drop_fresh_text` — after push/set and the `m[k] = v` / `m[i] = v`
  sugar, a value that was freshly BUILT (call result, `..` chain,
  interpolation) is dropped here, while a value read out of a place is left to
  its owner. That asymmetry is the point: before the copy the borrowed case
  double freed and the fresh case leaked
- obj.c: the runtime's output stream is line-buffered. A long-running program
  writing progress with `print` was invisible when stdout was a file or a pipe
  (full buffering), and a killed one lost its log entirely; byte-exact
  fixtures are unaffected
- scripts/log-watcher-accept.sh + `just log-watcher`: the acceptance test for
  the sample — compile, watch (alert), run (schedule), and three MCP checks.
  Hardened after it lied to me: a per-run port (a stale server on a fixed port
  answered for it), a connect-probe that fails loudly when OUR server did not
  come up, replies read by Content-Length rather than to EOF (the sample never
  closes), and kill -9 on teardown
- docs: the copy rule is in the builtin surface; the status board records the
  gap as closed and adds the new one — a blocking accept/read swallows SIGTERM,
  which belongs to the shard-actor runtime's event loop, not to a patch here

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-14 18:50:18 +02:00
79605cbb4f feat: milestone 1 complete — .wob emitter, conformance corpus, single binary; GC redesign specced
- `woc` now emits `.wob` that `wovm` runs: emit.ml lowers the typed,
  owner-annotated AST (scope-stack registers with a >64 WO-E401 diagnostic,
  Lua-style call windows, ICALL by slot, dedup const pool, drop maps, line
  tables, implicit terminators); disasm.ml backs `--dump-bc` goldens.
- Ownership lowering consumes the four owner tables verbatim; RESIDUAL is the
  only source of borrow ops, coalesced per operand. Review caught the emitter
  consuming only 2 of owner.ml's 4 residual producers — an assignment-anchored
  aliasing violation ran to exit 0 instead of trapping; fixed, plus a backstop
  raising WO-E404 for any residual region left unconsumed.
- Conformance harness `scripts/oop-e2e.sh` (`just oop-e2e`): four fixture
  kinds with exact outcomes — byte-exact stdout, one WO-E### anchored on
  `error CODE:`, numeric trap code, gc trace. 25 fixtures incl. pricing-demo
  logic, the ownership suite, and DB_STUB's parse-but-trap. `tests/` un-ignored
  so the corpus is actually tracked.
- `woc build` produces a self-contained binary: wovm copy + appended image +
  20-byte trailer, self-exec via /proc/self/exe. Verified relocated outside
  the repo, argless, and against adversarial trailer corruption.
- Milestone 1's five spec criteria all MET (`just oop-accept`). Criterion 3
  closed by WO-E405 — the entry must return `Int`, since program mode already
  says its return value is the exit code — which deletes the leak class
  without adding return-type metadata to the format. `gc/held-cycle` retired:
  an externally-held cycle is not expressible in a post-exit pump.
- New spec: inferred GC + incremental per-shard tri-color mark-sweep, retiring
  `@gc` and reference counting. Story gains iterations 7b (that work) and 9b
  (`@table`, relations, compiler-checked query); `.dev/reference` gains a
  sparse System.Linq checkout. Priority: 5→6→7 (log-watcher) then 7b, 8, 9, 9b.
2026-08-11 19:31:26 +02:00
2de724df11 feat(compiler): MVS ownership pass + woc driver; drop Money/SKU/Float, reject abstract
Completes plan 2 Tasks 7-8. owner.ml: mutable-value-semantics flow analysis
producing the four plan-3 emitter tables (moves, drops incl. LIVE-MASK for trap
unwinding, rc with elision, residual borrow sites) plus WO-E301-304 two-site
diagnostics. Alias questions run over canonicalized places, so a double-mut
reached through let-bound aliases lands in the residual table like the direct
form; dump.ml's contract notes the emitter must coalesce guards per operand.
main.ml: directory discovery, cross-file programs (symbols merge before bodies
check), diagnostics ordered by (file,line,col), new WO-E214 for a name declared
in two files. New docs/plan/oop-vm/01-error-catalog.md (14 emitted + 10 reserved
codes), un-ignored so both plan tracks can cite it; justfile regains woc-*.

builtin_scalars is now the five that work: Int, Bool, Text, Timestamp, Id.
Money/SKU/Float and the abstract_types allowlist are gone — `abstract` never
lexed, and Float had no literal syntax and no wob kind, so no value could exist.
Fixtures and samples retype Money->Int, SKU->Text. The abstract newtype feature
is rejected outright (verdict row adopt->reject); haxe-parity Task 7 keeps `is`.

nullable-types-implementation.md corrected: ?T is plumbed but UNENFORCED
(E211-213 declared, never emitted; probe exits 0), handed to haxe-parity Task 6
as next work item. Records all 10 dead codes incl. E205 — interface satisfaction
is unchecked. crates/rt keeps its Money/SKU fixtures (opaque strings, Stage 2).

Gate: build warning-clean, 14 + 264 checks 0 failures, pricing golden exit 0,
docs/examples histograms unchanged (13/70, zero WO-E225).
2026-08-10 21:24:50 +02:00
10cf6e4737 postgress as mirror database 2026-07-15 01:27:55 +02:00
7ae3a20af1 every class with @table anotation is queriable table 2026-07-15 00:44:09 +02:00
45b96f0466 # writeonce - method execution
POST /api/products/1/set_price -d '{"amount": 4999}'
2026-07-12 05:43:49 +02:00
929b2802c4 add wo-rt-c: C runtime prototype, phases A-F shipped
prototypes/wo-rt-c — single-file C reference of the writeonce runtime
layer, zero deps beyond libc + kernel uapi: thread-per-core io_uring
event loops (raw syscalls, no liburing), SO_REUSEPORT listeners, one
mlock'd mmap arena sharded by address, WAL dual-write with group commit
(HTTP ack only after the fsync CQE), boot-time snapshot + WAL replay
recovery, and a bench harness with a Go net/http comparison server.

Measured on 20 cores: 908k reads/s p99 154us and 643k fsync-acked
commits/s p99 177us on 8 shards, vs Go net/http 495k/355k (no
durability) on 20 cores. Crash-under-load testing found and fixed an
ack-before-fsync race and an fd-reuse ABA hazard in commit-ack parking.

docs/plan/exploration/c-runtime — the phased plan (00, exit evidence
per phase), the one-address architecture trace (01), and the
single-binary end-goal contract (02). justfile carries the demo and
bench recipes; .gitignore covers binaries and data dirs.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-06-12 23:05:13 +02:00